Oliver Peters runs down some basic terminology and techniques of Sound Editing:
Like picture editing, the completion of sound for a film also goes through a series of component parts. These normally start after “picture lock” and are performed by a team of sound editors and mixers. On small, indie films, a single sound designer/editor/mixer might cover all of these roles. On larger films, specific tasks are covered by different individuals. Depending on whether it’s one individual or a team, sound post can take anywhere from four weeks to several months to complete.
Location mixing – During original production, the recording of live sound is handled by the location mixer. This is considered mixing, because originally, multiple mics were mixed “on-the-fly” to a single mono or stereo recording device. In modern films with digital location recordings, the mixer tends to record what is really only a mixed reference track for the editors, while simultaneously recording separate tracks of each isolated microphone to be used in the actual post production mix.
ADR – automatic dialogue replacement or “looping”. ADR is the recording of replacement dialogue in sync with the picture. The actors do this while watching their performance on screen. Sometimes this is done during production and sometimes during post. ADR will be used when location audio has technical flaws. Sometimes ADR is also used to record additional dialogue – for instance, when an actor has his or her back turned. ADR can also be used to record “sanitized” dialogue to remove profanity.
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